Which of the following chemicals will react violently when it comes in contact with water?

The correct identification of the chemicals that react violently upon contact with water is crucial for understanding explosive safety in military operations. The listed options include a variety of chemicals, some of which are well-known explosives, while others are common agricultural products or non-reactive substances.

In this case, TH (a form of Tritonal), HC (High Explosive Composition), and TPA (Triacetone Triperoxide) are particularly known for their potential to undergo violent reactions when they encounter water. These reactions may produce gases and heat, which can lead to dangerous explosive scenarios in field conditions or during unintended mix-ups with water.

On the other hand, the other chemicals in the given choices do not have the same violent reactivity with water. RDX and TNT, while they are powerful explosives, are relatively stable and do not react violently in aqueous environments. Similarly, HMX, DNT, and ANFO represent stable explosive materials that do not exhibit similar reactivity issues with water. Lastly, urea, DAP (Diammonium Phosphate), and compost are generally safe for handling with water and do not pose explosive hazards when wet.

Understanding the specific reactions that different explosives can have with water is vital for ensuring safety and preventing accidents during storage, transportation